Incandescent gas-lamp.



No. 739,314. v FATHER@ sEPT.z2,19os.

R. w'. Huss.

INCANDBSGENT GAS LAMP. APrLIoL'rIoN FILED rma. 9', 1903.

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UNITED STATES- atented September 22, l

I PATENT OFFICE,

RUDOLPH W. Huss, or CHICAGO, ILLINOIS.

INCANDESCEVNT GAS-LAM P.

SPECIFICATION forming part of Letters Patent No. 739,314, dated September 22, 1903. I Application filed February 9, 1903. Serial lio. 142,642. (No model.) l

To a/ZZ whom t may concern: A

Be it known thatLRUDoLPH W. HUss,a citizen of the United States, residing at Chicago, in the county of Cook and State ofv Illinois, have invented certain new and useful Improvements in Incandescent Gas-Lamps, of which the the following isa specification.

My invention relates to gas lamps or burners, and particularly to gas lamps or burners of the class known as incandescent gasllamps and involving a Bunsen burner, a

-embodying the principles of my invention." Fig. 2 is a vertical'central section of the lamp on a reduced scale, a portion of the mantlesupport being broken away and they mantle being omitted for convenience of illustration. Fig. 3 shows the spirally-corrugated burnertube detached from the spirally-corrugated sleeve.

A indicates a Bunsen burner comprising a tube having its lower end portion l provided with side openings 2 for the admission of air and inclosing a gas tip or nipple 3, which can be attached to any ordinary or suitable gasiixture, such as illustrated by dotted lines in Fig. l. The tube which thus receives a supply of gas'from the nipple and a supply-of air through its side openings is of sufficient length and transverse area to form an upright passagewherein the admixture of the air and gas is effected preparatory to combustion at a point where the fluid passes outl through a wire-gauze screeuor diaphragm 1l, arranged at the upper end of the passage through the burner. The'burner-tube is formed 'or provided with an upper end portion 5 of greater diameter than its lower portion 6, so as to form a passage portion of suitable areafor the efficient mixing of the air and gas,or, in other words,a suitable length 5 of the tube is made of sufficient diameter to permit the vrugations illustrated.

air and gas to properly mix together, while the lower tube portion 6 is relatively .contracted with reference to well-known principles upon which burners: of this class operate. The upper portion V5 of the burner-tube is spirally corrugated'both internally and externally, whereby its' outer surface forms a screw-thread corresponding with the internal screw-thread of p a like spirally corrugated sleeve B, while its interior surface presents, in effect, avertical series of alternate vlateral con# tractions and expansions, whichserve to cause eddies in theasc'endin g air and gas, and thereby insure more perfect admixture of the same. I,

as a simple and exceedingly economical construction theenlarged portion 5of the burnerrtube and the sleeve B, which in Figs. l and 2 forms va part of the burner, are made of sheet metal and spun or drawnwith the spiral cormay, as a matter of course, be also made of sheet metal7 and the tube portions 5 and 6 can be primari-ly of one piece, although, if preferred, the upper tubeportion can'be made separate from the lower tube portion and be secured thereto, as in Fig. 5. The foraminated screen or diaphragm t can be secured to the top end of sleeve B, as in Fig. 2, in which the base end of the chimney-holder is Y understood to be unattached as to the burnertube portion 6, and with this arrangement the conducting and mixing passage can be adjusted in length in accordance with conditions and requirements by relatively4 turning the burner-tube and the chimney-holder to which the threaded sleeve is secured, it being observed that when the burner-tube is not at- The tube portion 6v "Ihesleeve B rises centrally from and is se- A cured to the gallery or chimney-holder C, and

tached to a gas-fixture it can be screwed into or outwardly from the sleeve 'by turning either the tube or the sleeve and that kwhen the tube is attached to a gas-fixture the'length of the passage can be adjusted by turning ,the sleeve and that as a simple arrangement the sleeve can be rigid with the chimneyholder, whereby the operator can easily raise and lower the sleeve and the chimney-holder by merely turning the latter about a vertical IOO axis. The gallery or chimney-holder is adapted to receive and support a chimney as usual, and it is also provided with a support D for a refractory :lnantle E. The length of the spirally-corru gated portion of the burner-tube permits a wide range of adjustment in the length of the passage and forms an exceedin gly simple and perfectly steady connection between the chimney-holder and the portion of the burner which is attached to the gasfixture, and it also permits the parts to be readily separated for purposes of cleaning. Both the sleeve and the burner-tube can be corrugated at almost nominal expense, and in practice I have repeatedly demonstrated that with a lamp having my burner-tube corru gated a much more brilliant light is attained than where the tube is not thus corrugated.

In the construction shown the spirally-corrugated tube-section 5 and the spirally-corrugated sleeve or tube-section B practically combine to forin an adj ustably-extensible Spirally-corrugated mixing-tube, whereof the tnbesection 5 is arranged to extend centrally through the gallery C and also of a length to extend both above and below the point where the lower end or base of the chimney is supported. By rotatively adjusting the tubesection B the length of the spirally-corrugated tube can be extended in accordance with requirements and observed results, such as the character and quality of the gas andthe pressure of the gas-supply, and where the sleeve or tube-section is secured to the gallery, as shown, the relative adjustments of the tubesections Band will, while varyi-ng the length of passage through the mixing-tube, also raise or lower the gallery relatively to the base formed by parts l and 6 of the burnertube, and thereby raise or lower both the chimney and the mantle.

Vhat I claim as my invention is- 11.. In a burner, a base having a centrally-located passage for gas; an adjustably-extensible mixing-tube having spiral corrugations above said gas-passage and having airinlet openings at its base, opposite the gas-passage and a suitable burner at the top.

2. In a burner, a base having a centrally-lo cated passage for gas; an adjustably-extensible mixing-tube having spiral corrugations above said gas-passage and having air-inlet openings at its base opposite the gas-passage, said ad j ustably-extensible mixing-tube being formed by two spirally-corrugated tube-sections adapted and arranged to screw the one upon the other; and a suitable burner at the top.

3. In a burner consisting of an incandescent gas-lamp constructed with a body forming a chimney-holder and provided with a support for a refractory mantle, a base having a centrally-located passage for gas; an ad j ustably extensible mixing-tube having spiral corrugations above said gas-passage and having air-inlet openings at its base opposite the gaspassage, said adjustable extensible mixing tube being formed by two spirally-corru gated tube-sections adapted and arranged to screw the one upon the other, one of such tubesec tions being provided at its upper end with a burner and being secured to the body which forms the chi1nney-holder- 4L. In an lincandescent gas-lainp, a gallery forming a chimney-holder and provided with a support for a mantle; a centrally-arranged, spirally-corru gated mixing-tube composed of a couple of spirally-corrugated tube-sections screwed the one upon the other, one of said tube-sections being provided with a burner and secured to the gallery, and a base below the mixing-tube and forming a gas-passage having a lateral inlet-openin g for the admission of air, said base being extended upwardly by the inner one of said spirally-corrugated tube-sections.

5. In a gas-la1np,a gallery forming a chiinney-holder; a spirally-corrugated sleeve or tube-section B secured to the gallery and provided at its top end with a suitable burner; a spirallycorrugated tube-section 5 arranged to screw within the tube-section l5; and a tubular base extended downwardly from the spirally-corru gated tube-section 5 and having a lateral opening for the admission of air.

RUDOLPH XV. IIUSS.

XVitnesses:

CHARLES G. PAGE, OTTIME C. FREIBERG. 

